A new technique has been developed that uses an acoustooptic modulator, a heterodyne detector, and 2-D raster-scanning mirrors to characterize laser-beam quality. The technique is described, and its preliminary performance is discussed in relation to the real-time 2-D phase and intensity profiles it produces and the computer data processing performed on those profiles.
© 1984 Optical Society of America
Charles P. Wang, "Measuring 2-D laser-beam phase and intensity profiles: a new technique," Appl. Opt. 23, 1399-1402 (1984)